James Carl Mathis, 625 Picket Ln, Bloomfield, CT 06002

6597919, Jul 22, 2003

Jun 23, 2000

09/602327

Surender Kumar - Schaumburg IL
James Mathis - Barrington IL
Bhavesh G. Patel - Naperville IL
Gary J. Aitkenhead - Bramley, GB
Mark Shaughnessy - Phoenix AZ

Motorola, Inc. - Schaumburg IL

H04Q 700

455510, 455452, 455445, 370230

A method and system for optimal radio channel management in a distributed connection and transport network. The method includes the steps of determining the quality of service required by a communication session, determining whether transport resources are available for immediate use by the communication session, and queuing the communication session for assignment to transport resources in accordance with the quality of service required and the availability of transport resources for immediate use. The system includes a set of assignable transport resources, an interface for requesting a communication session, a detection processor in communication with the interface for determining the quality of service required by the session, a resource processor in communication with the detection processor determining whether transport resources are available for immediate use by the session, and a queuing processor in communication with the resource processor holding the communication session for prioritized allocation to the transport resources.

6697349, Feb 24, 2004

Aug 30, 2001

09/945459

James E. Mathis - Barrington IL
Mark L. Shaughnessy - Phoenix AZ
Surender Kumar - Schaumburg IL

Motorola, Inc. - Schaumburg IL

H04Q 724

370338, 370390, 370432, 370331, 455518, 455524

A wireless communication system comprises a connectionless packet network coupled to a plurality of sites that are in location areas. The sites join respective location area multicast addresses to receive messages from other sites in their location area. Communication units desiring to participate in talkgroup calls need only to register affiliation with a first site of the location area. Upon the first site receiving an affiliation message, it joins a payload multicast group address to receive payload for the talkgroup. In alternative embodiments, the first site sends, via the location area multicast address, either control message(s) or tunneled payload associated with the talkgroup call to secondary site(s) of the location area. The sites initiate paging sequences to determine whether communication units at their sites desire to participate in the call and, based on the responses, the sites may deliver stored payload and/or join the payload multicast group address to receive payload for the call. In this manner, a centralized entity such as a VLR is not needed to keep track of communication units in the location area.

6798755, Sep 28, 2004

Dec 31, 2002

10/334523

Ross J. Lillie - Hoffman Estates IL
Matthew Keller - Algonquin IL
James E. Mathis - Barrington IL
Donald G. Newberg - Hoffman Estates IL
Bryan Thale - Algonquin IL

Motorola, Inc. - Schaumburg IL

H04L 1228

370312, 370270, 370338, 370462, 370352, 709227, 709228, 709229

A method for controlling and managing individual directed sessions between at least two endpoints in a communications system. The method including the steps of: intercepting a first message sent from an initiating endpoint via application layer routing to at least one other endpoint requesting an individual directed session; communicating the requested individual directed session to a service entity for determining the state of the session as a function of communication system resources and capabilities and resources of the endpoints to be included in the requested session, and if the requested individual directed session is accepted determining a set of corresponding session parameters; and communicating the state of the requested individual session to the initiating endpoint via application layer routing, and if the requested session is accepted also communicating the state of the session the at least one other endpoint via application layer routing.

6993327, Jan 31, 2006

Oct 29, 2001

10/038185

James Earl Mathis - Barrington IL, US

Motorola, Inc. - Schaumburg IL

H04M 3/42

4554141, 4554121, 455466, 370390

The present invention is a system, method and network () for multicast distribution of presence information to a plurality of communication devices (). A contact list (), associated with each communication device, identifies one or more of the other communication devices. The network provides one or more multicast addresses based on the contact lists of the communication devices to the plurality of communication devices. The network also sends multicast messages identified by the one or more multicast addresses to the plurality of communication devices. Each multicast address identifies a group of multicast devices among the plurality of communication devices, and the multicast messages include presence information about the group of multicast devices. A portion of the plurality of communication devices receives the multicast messages identified by the one or more multicast addresses and extracts the presence information about the group of multicast devices from the multicast messages.

7023813, Apr 4, 2006

Dec 31, 2002

10/334635

Donald G. Newberg - Hoffman Estates IL, US
Matthew Keller - Algonquin IL, US
Ross J. Lillie - Hoffman Estates IL, US
James E. Mathis - Barrington IL, US

Motorola, Inc. - Schaumburg IL

H04H 1/00

370312, 370270, 370390, 370338, 370432, 709227, 709228

In a communications system having a plurality of endpoints each including a logical entity and its physical counterpart, a method for managing a pool of multicast addresses. The method including the steps of: generating a pool of available multicast addresses; receiving a request for a multicast address; allocating a multicast address for usage subject to at least a first limitation; monitoring the usage of the allocated multicast address; and reclaiming the allocated multicast address if as a function of the monitoring it is detected that a first condition is met, and causing the allocated multicast address to be placed into the pool of available multicast addresses.

7353038, Apr 1, 2008

Mar 29, 2005

11/092236

James E. Mathis - Barrington IL, US

Mototola, Inc. - Schaumburg IL

H04B 7/00

455518, 4554141, 455517, 455519, 455520

A method and apparatus for indicating an expected level of quality in a private Push To Talk (PTT) network are disclosed. The method and apparatus receive at least one of an affiliation message and a talkgroup call request for a first subscriber unit of the private PTT network wherein a talkgroup is associated with at least one of the private PTT network, another PTT network, and a public network. The method and system determine an expected level of quality for the talkgroup and send the determined expected level of quality to the subscriber unit.

7366780, Apr 29, 2008

Dec 31, 2002

10/334577

Matthew Keller - Algonquin IL, US
Ross J. Lillie - Hoffman Estates IL, US
James E. Mathis - Barrington IL, US
Donald G. Newberg - Hoffman Estates IL, US

Motorola, Inc. - Schaumburg IL

G06F 15/16
H04L 12/16
H04M 11/00
H04M 3/42

709227, 709204, 370260, 370261, 370263, 370270, 370351, 379 9321, 379 9331, 37910006, 37920501, 37920601

In a communications system having a plurality of endpoints () each including a logical entity and its physical counterpart, a system for controlling and managing session between at least two endpoints. The system including a registration manager (), an application layer router (), a session controller (), a group database manager (), and at least one group entity ().

7492734, Feb 17, 2009

Apr 28, 2005

11/117191

James E. Mathis - Barrington IL, US
Robert A. Biggs - Evanston IL, US
Gary W. Grube - Barrington IL, US
Matthew C. Keller - Algonquin IL, US
Robert D. LoGalbo - Rolling Meadows IL, US
Daniel J. McDonald - Cary IL, US
Donald G. Newberg - Hoffman Estates IL, US
Brian R. Poe - Cary IL, US

Motorola, Inc. - Schaumburg IL

H04Q 7/00

370328, 370352, 370390, 370401, 370432, 370466

A method for providing a mobile device in a packet data network access to a channelized network is disclosed. At a gateway between the two networks, a first channelized network message that is encapsulated in a first IP data packet from the packet data network is received. The first channelized network message is retrieved and reformatted for sending over the channelized network. The gateway then receives a second channelized network message from the channelized network. An identifier of a mobile device associated with the second channelized network message is retrieved and an IP address for the identified mobile device is determined. Then, the gateway encapsulates the second channelized network message into a second IP data packet and sends the encapsulated second channelized network message to the identified mobile device in the packet data network.